RECON: TNO occultation with 14QY441

Event between 14QY441 and star UC4-564-013717 with event index number of 179080

Geocentric closest approach at 2019/01/23 09:08:57 UTC

J2000 position of star is 05:06:08.9 +22:40:34
Equinox of date position of star is 05:07:13.8 +22:41:57
Stellar brightness R=12.6, use SENSEUP=16
Star is 76 degrees from the moon. Moon is 93% illuminated.
TNO apparent brightness V=21.5

[RECON map]
TNO is 37.7 AU from the Sun and 37.0 AU from the Earth.
The TNO is moving 16.8 km/sec on the sky relative to the star, or, 2.3 arcsec/hr.
The 1-sigma error in the time of the event is 234 seconds.
The 1-sigma cross-track error in the shadow position is 1713 km.
The sky-plane scale is 26835.5 km/arcsec.

The TNO has an absolute magnitude Hv=5.6
Diameter=457.1 km assuming a 5% albedo -- 27.2 sec chord
Diameter=186.6 km assuming a 30% albedo -- 11.1 sec chord
Dynamical classification is 4:3E
 
 
 
 
 
 

Star training set for 14QY441, (2019/01/23 09:09UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:01.0 +16:32:46  0.8  9.42  84
Alnath         05:27:29.9 +28:37:19  1.6  7.47  71
PPM 094053     05:06:46.9 +23:05:09  6.5  0.40  76
PPM 094066     05:07:49.8 +22:32:05  7.0  0.21  76
PPM 094061     05:07:12.5 +22:41:05 10.8  0.03  76
14QY441        05:07:17.9 +22:42:02 12.6        76
Positions are for equinox of date

This table contains the target star visibility for the RECON network. The observing range has been set to a maximum of 3.8 sigma about the mid-time.
The median site spacing is 20.8 km RECON observability=1.0 and success probability=7.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 09:05:06 -58.5 Dark Up 34.6 265.4 Up 08:50:06 - 09:20:06 4260
Tonasket 09:05:05 -58.7 Dark Up 34.7 265.6 Up 08:50:05 - 09:20:05 4240
Okanogan 09:05:04 -59.0 Dark Up 34.8 265.7 Up 08:50:04 - 09:20:04 4208
Brewster 09:05:03 -59.3 Dark Up 34.9 265.7 Up 08:50:03 - 09:20:03 4180
Manson/Chelan 09:05:03 -59.6 Dark Up 35.2 265.6 Up 08:50:03 - 09:20:03 4153
Entiat 09:05:02 -59.9 Dark Up 35.3 265.7 Up 08:50:02 - 09:20:02 4132
Wenatchee 09:05:01 -60.1 Dark Up 35.4 265.8 Up 08:50:01 - 09:20:01 4107
Ellensburg 09:05:00 -60.6 Dark Up 35.6 265.9 Up 08:50:00 - 09:20:00 4066
Pasco 09:04:54 -60.8 Dark Up 34.6 267.5 Up 08:49:54 - 09:19:54 4035
Yakima 09:04:59 -60.9 Dark Up 35.6 266.2 Up 08:49:59 - 09:19:59 4029
PNWRO 09:04:53 -60.9 Dark Up 34.5 267.8 Up 08:49:53 - 09:19:53 4019
Toppenish/White Swan 09:04:58 -61.1 Dark Up 35.5 266.5 Up 08:49:58 - 09:19:58 4014
George/Umatilla 09:04:53 -61.2 Dark Up 34.8 267.5 Up 08:49:53 - 09:19:53 4000
Goldendale 09:04:56 -61.7 Dark Up 35.8 266.5 Up 08:49:56 - 09:19:56 3955
The Dalles 09:04:56 -62.0 Dark Up 36.1 266.4 Up 08:49:56 - 09:19:56 3926
Maupin 09:04:55 -62.4 Dark Up 36.1 266.8 Up 08:49:55 - 09:19:55 3891
Niwot 09:04:06 -58.4 Dark Up 24.2 280.0 Low 08:49:06 - 09:19:06 3886
Madras/Culver 09:04:53 -62.9 Dark Up 36.1 267.2 Up 08:49:53 - 09:19:53 3840
Redmond 09:04:51 -63.2 Dark Up 36.2 267.4 Up 08:49:51 - 09:19:51 3806
Sisters 09:04:52 -63.3 Dark Up 36.5 267.1 Up 08:49:52 - 09:19:52 3799
Bend 09:04:50 -63.5 Dark Up 36.3 267.4 Up 08:49:50 - 09:19:50 3783
Oregon Observatory 09:04:51 -63.7 Dark Up 36.4 267.5 Up 08:49:51 - 09:19:51 3764
La Pine/Gilchrist 09:04:50 -63.9 Dark Up 36.4 267.6 Up 08:49:50 - 09:19:50 3744
North Lake 09:04:47 -64.1 Dark Up 36.0 268.3 Up 08:49:47 - 09:19:47 3719
Paisley 09:04:44 -64.4 Dark Up 35.8 268.9 Up 08:49:44 - 09:19:44 3678
Lakeview 09:04:42 -64.8 Dark Up 35.7 269.4 Up 08:49:42 - 09:19:42 3636
Chiloquin 09:04:47 -65.0 Dark Up 36.8 268.1 Up 08:49:47 - 09:19:47 3632
Klamath Falls 09:04:45 -65.3 Dark Up 36.7 268.4 Up 08:49:45 - 09:19:45 3603
Tulelake 09:04:43 -65.4 Dark Up 36.5 268.8 Up 08:49:43 - 09:19:43 3585
Cedarville 09:04:38 -65.3 Dark Up 35.5 270.0 Up 08:49:38 - 09:19:38 3580
Fall River/Burney 09:04:40 -66.2 Dark Up 36.5 269.6 Up 08:49:40 - 09:19:40 3502
Susanville 09:04:36 -66.5 Dark Up 35.9 270.5 Up 08:49:36 - 09:19:36 3463
Gimple 09:04:36 -66.8 Dark Up 36.1 270.6 Up 08:49:36 - 09:19:36 3431
Greenville 09:04:35 -66.8 Dark Up 36.1 270.5 Up 08:49:35 - 09:19:35 3429
Portola 09:04:32 -66.9 Dark Up 35.8 271.0 Up 08:49:32 - 09:19:32 3411
Quincy 09:04:35 -67.0 Dark Up 36.1 270.6 Up 08:49:35 - 09:19:35 3410
Reno 09:04:31 -66.9 Dark Up 35.3 271.6 Up 08:49:31 - 09:19:31 3404
Carson City 09:04:30 -67.1 Dark Up 35.2 271.9 Up 08:49:30 - 09:19:30 3370
Yerington 09:04:27 -67.0 Dark Up 34.8 272.4 Up 08:49:27 - 09:19:27 3370
Gardnerville 09:04:29 -67.3 Dark Up 35.2 272.1 Up 08:49:29 - 09:19:29 3349
Hawthorne 09:04:24 -67.2 Dark Up 34.3 273.0 Up 08:49:24 - 09:19:24 3340
Tonopah 09:04:19 -66.8 Dark Up 33.2 274.2 Up 08:49:19 - 09:19:19 3337
Lee Vining 09:04:23 -67.8 Dark Up 34.7 273.1 Up 08:49:23 - 09:19:23 3273
Indian Springs 09:04:11 -67.1 Dark Up 31.9 276.0 Up 08:49:11 - 09:19:11 3241
Beatty 09:04:14 -67.4 Dark Up 32.8 275.2 Up 08:49:14 - 09:19:14 3240
Bishop 09:04:20 -68.0 Dark Up 34.1 274.0 Up 08:49:20 - 09:19:20 3236
Henderson 09:04:07 -67.0 Dark Up 31.3 276.7 Up 08:49:07 - 09:19:07 3211
Patrick 09:04:03 -66.7 Dark Up 30.3 277.6 Up 08:49:03 - 09:19:03 3185
DCO 09:04:01 -66.5 Dark Up 29.7 278.1 Low 08:49:01 - 09:19:01 3178
Lone Pine 09:04:17 -68.4 Dark Up 33.8 274.6 Up 08:49:17 - 09:19:17 3173
Kingman/Dolan Springs 09:04:03 -67.0 Dark Up 30.4 277.6 Up 08:49:03 - 09:19:03 3158
Searchlight/Boulder City 09:04:05 -67.4 Dark Up 31.2 277.0 Up 08:49:05 - 09:19:05 3158
Laughlin/Bullhead City 09:04:03 -67.3 Dark Up 30.9 277.4 Up 08:49:03 - 09:19:03 3140
Mohave Valley 09:04:03 -67.5 Dark Up 30.8 277.5 Up 08:49:03 - 09:19:03 3114
Lake Havasu City 09:04:01 -67.6 Dark Up 30.6 277.9 Up 08:49:01 - 09:19:01 3083
Parker 09:04:00 -67.8 Dark Up 30.5 278.1 Up 08:49:00 - 09:19:00 3050
Blythe 09:03:59 -68.3 Dark Up 30.7 278.3 Up 08:48:59 - 09:18:59 2990
CPSLO 09:04:18 -70.7 Dark Up 35.8 274.1 Up 08:49:18 - 09:19:18 2972
Idyllwild 09:04:04 -69.6 Dark Up 32.4 277.2 Up 08:49:04 - 09:19:04 2936
Wildwood 09:04:10 -70.5 Dark Up 34.0 276.0 Up 08:49:10 - 09:19:10 2914
Calipatria 09:04:00 -69.2 Dark Up 31.4 278.1 Up 08:49:00 - 09:19:00 2913
Yuma 09:03:56 -68.9 Dark Up 30.6 278.8 Up 08:48:56 - 09:18:56 2899

Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.

Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.

Star training set for 14QY441, (2019/01/23 09:09UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  9.42  84
Alnath         05:26:17.5 +28:36:24  1.6  7.47  71
PPM 094053     05:05:37.7 +23:03:40  6.5  0.40  76
PPM 094066     05:06:40.9 +22:30:38  7.0  0.21  76
PPM 094061     05:06:03.6 +22:39:36 10.8  0.03  76
14QY441        05:06:08.9 +22:40:34 12.6        76
Positions are for J2000

Event circumstances last updated at 2017/12/05 19:11:45 UT

Marc W. Buie, Southwest Research Institute

RECON